NONAQUEOUS SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery having a high capacity and a superior cycle property by suppressing volume changes of electrode(s) due to volume changes of an active material.

SOLUTION: On at least one side between the positive electrode and the negative electrode, spherical high polymer compound particles which are not dissolved in the nonaqueous electrolytic solution and which skid among active material particles smoothly are made to be impregnated. It is preferable that the spherical high polymer compound particles are composed of crystalline polymer compound containing fluorine, crystalline polyolefin or meshlike polymer compound.

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